Yes, completely free with no signup and no usage limits.

Are the results real availability checks?

No. This tool simulates availability checks client-side based on username formatting rules (length, allowed characters). For real availability, visit each platform directly.

Does it work on mobile?

Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.

社群帳號可用性檢查

檢查 Instagram、Twitter/X、TikTok、YouTube 與 Reddit 的帳號可用性,前端模擬。

100% client-side · no API calls

How to use

Enter the username you want to claim in the input box above.
Click Check to validate it against each platform's rules.
Green means the username format is valid for that platform. Visit the platform to check real-time availability.

Related social media tools

Social Bio Builder — craft a bio to go with your new username
YouTube Thumbnail Preview — preview your YouTube channel thumbnail
Instagram Hashtag Counter — plan your first Instagram post

常見問題

Is this tool free?: Yes, completely free with no signup and no usage limits.
Are the results real availability checks?: No. This tool simulates availability checks client-side based on username formatting rules (length, allowed characters). For real availability, visit each platform directly.
Does it work on mobile?: Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.

Last updated: 2026-05-20 By jarvisbox